Protector for cutting-tools.



J. sMTH. PROTECTOR FOR CUTTING TOOLS.

APPLI'CATlON FILED NOV. 1A 19l2.

APatented Aug'. 5, 1913.

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STATES PATENT QFFICE.

.LAMES SMITH, 0F WALL, PENNSYLVANIA.

:PROTECTOR FOR CUTTING-TOOLS.

.Specification 0f` Letters Patent.

y Patent-caring. 5,1913.

Application fixed November 1, i912. serial No. 729,082.

y.CuttingTools, of which the following is a specification.

My invention relates to an improved device for the purpose of preventing the escape of metallic chips, etc., in connection with the cutting of rivetheads and other metallic objects by a cold chisel.

Ordinarily, in the cutting of rivet heads, etc., the edge of the chisel is held against the base of the head by the workmamand a hammer applied to the other end of the chisel in the usual way. Such operation fre quently results in accidents, either to the workman himself, or to others in the neighborhood, by reason of the rivet or small metallic pieces becoming loose and flying through the air and causing injury, loss of eye-sight, etc.

My invent-ion has in view to provide a simple and eflicient device forcovering the particular rivet head -being operated upon, adapted to be secured to the operative end of the tool and toembrace the rivet head.

It also relates to a cover/ing device for the other end of the chisel, whereby to accomplish the'same objects at the point of impact of the hammer and the chisel.

One preferred form of the invention is illustrated in the accompanying drawings in which Figure 1 is' a view of the device in side elevation, in operative position. Fig. 2 is a similar view, the protecting device being Shown in section. F i0. 3 is a rear end view .of the hammer end of.j the cold chisel, show` cidentally struck by the hammer, a neck portion 7 of which is adapted to be clamped around t-he shank .of the chisel by means of '55 a clamp 8. Said clamp s provided with av tightening screw 9 having a thumb nut termmal l0 by `which it may be readily adjusted to position longitudinally of the chisel, 'and there iixedlyheld.

The cup 6 is of generally spherical form,` as shown, having an opening l1 of sutiicient size to'freely admit the `hammer 5, and extending outwardly beyond the clamping neck 7 sufliciently far to completely embrace the end ofthe chisel and the head of the hammer,- andv to interrupt the travel of` any free particles of metal.

'At 'the chipping end, the chisel is provided wit-h asimilar device consisting` of a substantially semi-spherical cup l2, also. of rubber or other suitable flexible material, of sufficient thickness to provide a good resisting body portion. The'cupA l2 is likewise provided with a clamping neck 13 adapted to be held in place by a similar clamp 8 having the screw 9 and thumb nutlO, as shown.

The cup l2 is located'with its under edge 14:l substantially in alinement orparallclism with the cutting edge -3 of the chiseland is adapted to lie flatly upon the surface a` of the met-al plate or other-article having the rivets to be chipped. i

.Due to its shape and lieXibility, it will be seen that the chisel 2 may be adjusted at a suitable angle withrelation to the rivet head b and surface a to effect the cutting opera.- tion, fthe cup completely incl'osing these parts and effectively preventingthe 'forcible escape of metallic chips, etc.

It will lbe understood that the device.may be vused with other implements of the same nature, or Ywith pneumatic chip-tools, cutters,.chis els', etc., and also that the specific" form and .design of t-he device may be `changed tor varied by the skilled mechanic, but that all such changes are to be considered as withinthe scope ci' the following claims.

What I Aclaim is :l

l. A protector for chipping tools comprising a cup-shaped shield ofpliable materia-l having an open side for application to the working surface over which an object is to be chipped, and an integral portion for attachment tol the tool,substantially as set forth.. g

2. A protector for chipping tools com-4 prising a cup-shaped shield of pliable ina-y terial having an open side for application. to the Working surface from which an object 2 Tipea/lee Y is to be chipped and an integral embracing neck for a chipping tool,vsubstantially as set forth. 'A 3. The combination With a chipping tool, of a protector having a bulbous body portion open at. one side and an integral neck embracing the'tool and secured thereto', substantially as set forth.

4. The combination .With a chipping tool,

' of a protectorihaving a bulbous b ody por-` tion open at one side and anvintegral neck embracing the gtool, and. a securing clamp,

substantially as Set' forth; i

5. A protector for chipping tools consistf ing of acup-shaped shield of lpliable material having an openside for application to a Working surface and` an'integral portion -of pliable mate-rial adapted to fit tightly around-the non-cylindrical shank of .substantially as set forth.

SQA protector 'for chipping tools consisting of a. cup-shaped shield of pliable material having an ope'nside for application to a working ysurface and an integralportion. 25 of pliable'material adapted to -lit tightly 'around lthe non-cylindrical shank of the tool.

y i JAMES SMITH.

Witnesses C. M. CLARKE, A FREDK. STAUB. 

